Scripting: static collection 2004-03-10 - By Christian Rittener
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Thanks Bradley. That's what I was suspecting. I did a few things in C just
as OOP was becoming all the rage, so I understand pointers etc. Didn't read
about them in Jscript anywhere online, though. Are there books about data
structures etc. in Jscript?
Christian Rittener
Bradley Gabe wrote:
> Some basics on OOP. You'll need to get a firm grip on the difference
> between assigning pointers to objects, creating objects, running
> object
> methods, and getting/setting object properties.
>
> ch_coll = new ActiveXObject( "XSI.Collection" ); // Creates a new XSI
> Collection obj pointed to by ch_coll. ch_sel = selection ; // Points
> var ch_sel to already existing Selection object.
> ch_coll = ch_sel ; // Points var ch_coll to same thing ch_sel is
> pointing to, selection.
>
> // What you've done is create an object, then lose it by reassigning
> its
> pointer to something else.
>
>
> ch_coll = new ActiveXObject("XSI.Collection"); // Create a new XSI
> Collection obj
> ch_coll.AddItems(selection); // Populate the new collection with
> items
> from selection object.
>
> // Once the AddItems() method is run, your ch_coll is set and won't do
> anything until you add or remove items.
>
>> Hello,
>>
>> I'm trying to go all OOP, so please be indulgent.
>>
>> In Jscript, I'm trying to use ExtractFromComponents while looping
>> through aselection of geometries and then looping through their
>> respective clusters. As soon as a new object is created, it becomes
>> selected, screwing up my outer loop. How do get the selection
>> collection to remain fixed to what it is at the beginning of the
>> script? I tried copying Selection into a new collection, with
>>
>> ch_coll = new ActiveXObject( "XSI.Collection" ) ;
>> ch_sel = selection ;
>> ch_coll = ch_sel ;
>>
>> and looping through the second collection, but the same thing
>> happens... ???
>>
>> Christian Rittener
>>
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